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In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.

In this activity, learners "go fishing," then practice ruler use and size/pattern comparison with the animals they catch.

In this activity, learners will explore how the human brain interprets environmental stimuli.

In this activity (on page 12 of the PDF), learners make a sundial (shadow clock) appropriate for their geographic location in the northern hemisphere and use it to tell time.